I have been using Mender since version 1.5. When I started the integration of Mender in my product I tested that after an update, if there is not Internet connection Mender Client performs a rollback. This was for me a killing feature, because a device will never install an update that will set i…

What are your RetryPollIntervalSeconds and UpdatePollIntervalSeconds settings in the client configuration? Low values of the former, combined with high values of the latter, can cause the client to retry a lot of times before it gives up. It’s essentially a “UpdatePollIntervalSeconds / RetryPollInte…

UpdatePollIntervalSeconds =“18000” RetryPollIntervalSeconds = "300 So it is like check for OTA every 5h and the retry is like 5m. I think those times are reasonable. 5h is good for not overloading the server but good for noticing an OTA. 5m to to retry communication with the server when it can …

Here there is a test where the times have been changed and we can see that the rollback is not performed when the update commit could no be done and the UpdatePollIntervalSeconds time has been overpassed (and I have waited several minutes more and the log loop continues like shown). $ cat /etc/mend…

[image] aro86: In the other hand, if I understand correctly, what you are telling me with the formula is that we are going to perform as much retries as the division of “UpdatePollIntervalSeconds / RetryPollIntervalSeconds” pausing RetryPollIntervalSeconds between retries. Correct, with a min…

I cannot reproduce this, it rolled back just fine for me. What exactly have you set the intervals to in your latest test?

$ cat /etc/mender/mender.conf { “ClientProtocol”: “https”, “RootfsPartA”: “/dev/mmcblk0p2”, “RootfsPartB”: “/dev/mmcblk0p3”, “UpdatePollIntervalSeconds”: 300, “InventoryPollIntervalSeconds”: 86400, “RetryPollIntervalSeconds”: 10, “ServerURL”: “ https://mender-development.XXXXXXXXX.com:7443 ”, …

Thanks, now I reproduced it, I see you added https://tracker.mender.io/browse/MEN-2676 , so I added more details there.

On the tracker, you mentioned that For existing users, a workaround for this problem is to ensure that the UpdatePollIntervalSeconds / RetryPollIntervalSeconds formula doesn’t produce a high number Can you please provide the exact number which would allow to stay safe, if possible?

Staying below 5 should definitely be safe. Our tests indicate that more cycles than this are needed in order to trigger the state loop detection.

Mender client not rolling back when there is not internet connection

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Mender client not rolling back when there is not internet connection

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